Ekiga (formely known as GnomeMeeting) is an open source VoIP and video conferencing application for GNOME. Ekiga uses both the H.323 and SIP protocols. It supports many audio and video codecs, and is...

Combining voice calls, video calls and Instant Messaging in a simple interface, CounterPath's X-Lite helps you seamlessly transition from a traditional phone environment into the world of Voice over IP. ...

QuteCom is a community of enthusiasts and developers, creating free software products related to communication over IP. The flagship product of the QuteCom project is a softphone which allows you to make free...

Reliable, easy, effective web conferencing and online meetings. Work with anyone, anywhere. GoToMeeting allows you to host an online meeting with up to 15 people – so you can do more and travel less. Using our...

SFLphone is a robust standards-compliant enterprise softphone, for desktop and embedded systems. It is designed to handle several hundreds of calls a day. SFLphone is available under the GNU GPL license,...

MicroSIP is a free portable SIP softphone for Windows based on PJSIP stack. It allowing to do high quality VoIP calls (p2p or on regular telephones) via open SIP protocol. From cloud of SIP providers you can...

Tpad is a free program that uses the latest VoIP / SIP technology to bring free and crystal clear voice quality communications to any user all over the world. When you use the free Tpad software, you can call...